| From | Message |
smokey
Dodge Dakota
JOIN HERE
6/19/2005
15:55:43
|
 Subject: Compression Test Results on Smoking 5.2
IP: Logged
Message:
8 - 175 7 - 130
6 - 160 5 - 190
4 - 190 3 - 160
2 - 175 1 - 190
I also noticed oil on plugs 2 and 6. Plug 5 was really red. Looks like rings in 3, 6, and 7 are bad.
I also looked down my TB first, and it seemed like there was a liltle bit of oil but no puddles. I also noticed that there was a thin layer of oil on the bottem of the throttle blades.
Now my question is, would it be reasonable just to have the rings replaced or should i just have everything replaced? The rings replacement I was quoted for around $1,300 on the labor.
What type of rings should i go with, and what else should be done when the are replacing the rings?
My mods are powerdyne s/c w/ highflow fuel pump,edelbrock aluminum heads,headers,msd 6a/blaster 3/btm/8.5mm,flowmaster 40 single in dual out.
Once i get the smoking/oil consumption under control i would like to move up to the M1 and a bored TB.
thanks for the input
|
.boB
Dodge Dakota
JOIN HERE
6/19/2005
16:55:14
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
Unless you're doing the job yourself, it just doesn't pay to do rings only. It's only a few dollars in parts, and rest is all labor. Now you have an old engine with new rings. It won't be "as good as new". You'll spend a lot of money and be very disappointed with the results.
If it were my truck - and it's not - I would find a good crate short block and drop that in. Then you can pick a better cam shaft to match those heads. You can get better pistons to raise the compression if you want to. You might even consider a stroker.
|
smokey
Dodge Dakota
JOIN HERE
6/19/2005
21:49:42
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
yeah i was thinking about that, now i am just wondering if i should buy a block built, or piece by piece.
also what cam should i go with?
Also what type of price range would doing that be?
because i am wondering if i should just do the rings so it stops smoking, and sell it. Then i could get into something better and newer.
|
smokey
Dodge Dakota
JOIN HERE
6/19/2005
22:00:16
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
what do ya think about this ASSEMBLED SHORT BLOCK
is that worth the money, and what else should or need to get along with it.
|
smokey
Dodge Dakota
JOIN HERE
6/19/2005
22:03:34
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
Here is one from huges 318ci Short block assembly
|
smokey
Dodge Dakota
JOIN HERE
6/19/2005
22:07:32
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
what about this cam 5.2L/5.9L V8 Magnum Hydraulic Roller Camshafts
|
.boB
Dodge Dakota
JOIN HERE
6/19/2005
22:24:28
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
The speedomotive part appears to be a non-magnum, non-roller cam shaft. You can fit it in to the truck, but it won't fit your heads, intake, front cover, etc. Pass on that one. Too much work and too many extra parts to make it work. Although you could probably contact them and they could build you a 408 Magnum for not much more money.
The hughes engine parts look pretty good. They seem to know what they're doing with magnum engines. With your 65cc heads, the compression would be pretty low; which is a good thing for you.
As for the cam shaft, I couldn't tell you. I don't have any experiance with blowers. I would call Comp Cams and Crane cams and ask them.
|
jayb
Dodge Dakota
JOIN HERE
6/20/2005
10:19:39
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
just drive it. throw some engine restore, or twice as much as you should. thats the red neck way to do it. and cheap.
|
smokey
Dodge Dakota
JOIN HERE
6/20/2005
10:52:11
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
I contacted speedomotive, and they said its only $300 more for the magnum block. Now with that in consideration, it is about $200 cheaper then the hughes.
And why do you think i would be disappointed with just doing the rings? It would be a lot cheaper, and it would no longer smoke or burn as much oil. Which would give me some time to save up for the new block.
If i were to replace just the rings, would that take care of the smoking and oil consumption, or could it be something else. Also, wouldn't bring my compression in each cylinder back up?
Just trying to look at all my options, i would rather just fix it to sell it, and get another truck with a warranty.
again thanks for the input
|
jayb
Dodge Dakota
JOIN HERE
6/20/2005
13:43:23
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
if i were you, id do the rings. but thats because i can do the work my self. drop the pan pull the crank, and pull the pistons out. of course there is other things to do, but thats the gist. then just drive it. its alot easier to drive a truck, that you owe nothing on and runs, than spend 20k on one. unless you make a butt load of money.
|
smokey
Dodge Dakota
JOIN HERE
6/20/2005
18:31:27
| sd
IP: Logged
Message:
Either way, i need to have it fixed soon, i have enough money saved to have the rings replaced, but not enough to get the new block and have it installed.
Because i am looking at spending $1500 to have my truck back and running verus $4500 back and running like new.
Would replacing just the rings take care of the smoking and oil consumption, or could it be something else. Also, wouldn't bring my compression in each cylinder back up?
|
smokey
Dodge Dakota
JOIN HERE
6/20/2005
19:52:44
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
could just doing the rings stop the smoking? Because other then that the truck runs great.
|
.boB
Dodge Dakota
JOIN HERE
6/20/2005
22:30:40
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
The rings will be new, but the bearings, crank, cam, etc, will be old. It will perform better, but not like new. And it won't burn oil. You're spending at least $1300, and probably more. Then, in a few thousand miles, the something else will fail (rod bearing), and you're right back where you started. Except you're $1300 poorer. Might as well do it right and short block it.
But I'm with jayb. I can do the work myself. So it's about a week of my spare time and about $100 in parts to do the whole job. Plus a lot of cussing and band-aids. So financially it's a no brainer for me and jayb.
But you'll spend $3K on the short block. Another $500-800 on installation, and you'll have a screamin motor that will last longer than the rest of the truck.
In the meantime, add some Restore, and add oil when you need to. No big deal. I've driven cars for years that burn a quart every 1500-2000 miles.
|
tc
Dodge Dakota
JOIN HERE
6/20/2005
23:00:16
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
how many miles on the motor? I gotta agree with the others - usually if the rings are trashed there is significant wear on bearings, etc. I usually just rebuild everything - but my cost structure is alot less. I do know people that just do the rings and get a few more years out of it
|
jayb
Dodge Dakota
JOIN HERE
6/21/2005
11:06:25
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
also, new rings will blow out the rod bearings in no time i believe. i say, drop the pan pull the whole lower end out like that, and replace everything. bearings, rings, new pistons, maybe new rods, etc. i wouldnt worry about having it bored. only way i would do that is if it was f'd.
|
smokey
Dodge Dakota
JOIN HERE
6/21/2005
12:19:57
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
.boB said it best "But you'll spend $3K on the short block. Another $500-800 on installation, and you'll have a screamin motor that will last longer than the rest of the truck.
"
Looks like i might just save up for that hughes block. With that block my edelbrock heads, headers and powerdyne s/c #9, what is a ruff estimate in hp do you think i would be making?
|
smokey
Dodge Dakota
JOIN HERE
6/21/2005
12:49:48
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
also, what about a cam? whats a good recomendation for my setup, or soon to be set up.
Also, is it better to go with the speedomotive or the hughes?
thanks again for all the input
|
.boB
Dodge Dakota
JOIN HERE
6/21/2005
15:13:27
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
360..good heads..cam...blower...intake...headers. I would expect 450-475hp fairly easily. Once it's broken in and tuned correctly, I don't think 500hp at around 6,500'ish would be out of line (at the crank).
|
smokey
Dodge Dakota
JOIN HERE
6/22/2005
19:09:18
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
what is the recomended time for break in? Those number seem worth it to me, i will be getting it dyno'd after the installs.
I wonder what a 500hp reg cab 4x4 could do in the 1/4
|
.boB
Dodge Dakota
JOIN HERE
6/22/2005
22:48:18
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
Engine break in is pretty easy with a roller cam. Run it for a couple of heat cycles. Check for leaks, etc. Then change the oil. Drive it normally for about 1,000 miles, and change the oil again. At 4,000 miles, switch to synthetic. That's pretty much all there is to it.
|
smokey
Dodge Dakota
JOIN HERE
6/23/2005
21:59:21
| RE: Compression Test Results on Smoking 5.2
IP: Logged
Message:
I also noticed that under WOT a lot of black smoke flys out the pipes. Running rich? And if so will this damage anything?
|
| | P 1 |
|
Post a reply to this message:
Username Registration: Optional
All visitors are allowed to post messages
|
